docs: def get_news(self):
          """
          function to get news articles
          """
          if self.topic is None or self.topic is 'Top Stories':
              resp = requests.get(top_news_url, params=self.params_dict)
          else:
              topic_code = topicMap[process.extractOne(self.topic, self.topics)[0]]
              resp = requests.get(topic_url.format(topic_code), params=self.params_dict)
          return self.parse_feed(resp.content)